White Brothers Aluminum Pro II Complete Exhaust [obs]

White Brothers Aluminum Pro II Complete Exhaust [obs]
White Brothers Aluminum Pro II Complete Exhaust [obs]

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Description See Also: 16 Reviews 4 Questions
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16 Reviews
4.7 out of 5 stars
5 Star   14 4 Star   0 3 Star   1 2 Star   1 1 Star   0
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All Reviews
kingsport , TN
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Alum pro2

I love the alum pro 2. looks great, sounds better,and performs extreamly good. I ride my 04 ktm 450 sx every day and my neighbors hate it. they would rather hear my yz 250

450rider Top 100 Contributor
Spartanburg, SC
Great Exhaust

I bought this exhaust when i first got my TRX450 to hopefully give it some more power and make it sound better. Not only did it sound extremely well it gave it an enormous power increase. I honestly could not belive it. Everyone who hears my atv run can say nothing but compliments to its sound on the track which is a good deep tone that is not too too loud but just right. I have been using that exhaust for ove a year now and have just got my motor built recently which favors towards the exhaust even more. This exhaust works extremely well with a non built and built motor.

motoman161 Top 50 Contributor
crestline , ca
Works great but?

I love the performance of this pipe, I put it on a crf 250 and got huge gains everywhere. but mounting was bad , I had to file the middle mount. I have the pro circuit on my 450 and there is no better pipe then that. So if you have the money buy the pc system you will be in love....

White Brothers Aluminum Pro II Complete Exhaust [obs]
Bryce, Utah
Great Pipe

I was not sure what to expect with this pipe. I figured it would put some power out, was I in for a suprize. Easy to install took like 5 minutes. No jetting required on my YZ 250f. This gave me substantial bottom end unbelivable power troughout the whole powerbands. If you are getting a pipe seriously consider this one. Do get a heat shield with it, it will melt pants fast!

Great Buy

Like most riders you look for the most power for a good price. The Aluminum Pro is the pipe that gave that extra power that is much needed in todays motocross world.

Best purchase ever!

White Brothers always makes a great product.
This exhaust is top notch, fit and finish is excellent!
Great power and sound, plus the price is competitive with all other pipes!

ltzrtrxboy101 Top 1000 Contributor
Cottage Grove OR


Kramer2 Top 250 Contributor
Topeka, KS
Great Exhaust and Sound!

This exhaust is way cool. the sound is mind boggling with its low end deep throat roar! I love the power it gave my 2004 RMZ250! It is an awesome exhaust especially for the price it goes for. I havent had any problems with it yet and it was easy installation and only had to set the needle in the slide of the carb. up 2 notches to make it run flat out fast. It now keeps up with 250 2 Strokes in a drag race no problem!

furyrider8907 Top 1000 Contributor
A Bender

The head pipe on my 04 YFZ450 has cracked numerous times, although being replaced for free this was an inconvenience. The head pipe has sagged so low the it now is partially blocking my oil filter access. The silencer portion has bend all the way to where it is touching my frmae and has caused my boot to melt a little. If you don't mind these issues then you will enjoy the increased power throught the power range.

san diego, CA
White brothers

after putting the white brothers 2 on my 07 yamaha yz450f the intier power band was increased with still the smoth power that the stock system if you have a bike and its lacking power when you needs that little extra push get this system it make a world of diffrens

Henderson, NV
Great Tone, Easy Install

I bought this pipe for my 05 YFZ450 and it made a huge difference! It sounds awesome and performs even better. Fit and finish are better than any pipe I've ever installed. Must re-jet!!

Greensburg, IN
Best upgrade possible

I bought this exhaust for a 2005 crf 250r about a week ago, and WOW what a difference. The bike was almost completly stock and it made a huge difference. The bike is now a lot more snappy and feels like it has some power. It is important to rejet the bike in order to feel the difference. White bros also send a spark arrester and an air filter which sweetens the deal. Great Exhaust

Cherry Hill,NJ
Bottom end amazing

This product has sooo much bottom end power,and my 06 kx250f already blows me away with bottom end it is amazing and a good investment.

Cedar Rapids, Iowa
WB Aluminum Pro 2

Five star product! Installation was easy, big improvement over the stock system. Be sure to buy the different sized end caps, they really make a difference in the power delivery, the smallest size is great for slippery/dry tracks while the largest one is great for SX style tracks where you need an immediate hit to clear jumps right out of corners.

Benson, AZ
This exhaust is awesome

I rate this at a five because this exhast made a huge difference over my slip on that i had. It sounds awesome and it gives the bike more power all over the place. I would recommend this exhaust to any one who wants increased power, looks, and sound.

las vegas

I broke my header pipe and had a race in 3 days and motosport got this full system to me in 1 day and it is the best proformance exhaust i have ever had, adds sooo much bottom end its not even funny! overall its a great system just as long as you change your jetting in your carb.

4 Questions
Answered:   4
Not Yet:   0
Location: Wayne, PA
Q: Which is better the Aluminum Pro or the Carbon Pro?
Over 8 years ago
MotoSport Staff
Over 8 years ago Location: Por+land
A: Both are pretty much the same as far as performance goes. The only real difference is the material it's made off. The carbon can is going to require a lot more maintenance and it's going to be lighter, the aluminum can will be a little bit heavier but wont require as much maintenance. So all in all they are about the same.
Location: Franklin, NJ
Q: Full Exaust??
Over 8 years ago
Well I no it says full exaust but in the picture it only has the slip on pipe and part of the slip on exaust. Does it come with the hole header that goes to the engine? Thanks
Expert MotoSport Staff
Over 8 years ago
A: Yes! This is a full system so it will come with both the head pipe and the silencer.
Over 8 years ago Location: Hartley
A: If you make a larger image. It will show the full system.
Q: Do you have to repack the pipe like you're supposed to with the carbon pro?
Over 8 years ago
MotoSport Staff
Over 8 years ago Location: Portland, OR
A: Yeah you repack it just the same. You should probably do it at least once a month depending on how much you ride.
Q: Does the exhaust come with a spark arrestor?
Over 8 years ago
MotoSport Staff Expert
Over 8 years ago
A: The WB Aluminum Pro II was designed to be a race pipe. Unfortunately, these are not equipped with spark arrestors.
Over 8 years ago Location: Greensburg, IN
A: I bought mine a few months ago and it came with a spark arrester. Also came with a new jet.
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